If a comet ever did strike the Earth, it might make life here rather uncomfortable.

It looked as if a small comet had struck his palm.

The comet struck on top of an old scar.

The same thing would happen if comets struck up there now.

Occasionally an asteroid or a comet strikes the Earth, and this produces a somewhat larger mass increase.

I think at times in the dim human past, comets and meteors must have struck the earth with devastating consequences.

We know by now that an asteroid or comet struck Earth 65 million years ago and did in the dinosaurs.

And contrary to the editorial, the scale does have something to say about the possibility of "some comet striking the earth someday."

Martial confides to his colleagues that the comet will strike in 114 days.

Now they are like big old dinosaurs after the comet struck, thrashing around weakly on the ground.